Finding the Fourth Proportional to 9,525.96, 13,147.38 and 9,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,525.96 : 13,147.38 = 9,105.50 : x
2. Step 2: Convert to fraction form
   9,525.96/13,147.38 = 9,105.50/x
3. Step 3: Cross multiply
   9,525.96x = 13,147.38 × 9,105.50
4. Step 4: Simplify right side
   9,525.96x = 119,713,402.85
5. Step 5: Solve for x
   x = 119,713,402.85/9,525.96
6. Step 6: Final answer
   x = 12,567.07